Oregon Geology
Wallowa Lake fills a depression that was formerly occupied by a great river of ice that flowed out of the high Wallowa mountains to the south. This glacier reached its greatest size in the late Pleistocene age, about 12 to 40 thousand years ago. As it flowed out onto the valley floor, the glacier build great piles of rock debris around its edges, called moraines. When the ice melted away, the moraines remained as the high straight ridges we see today. The lake is 283 feet deep, but the glacier was over 1500 feet thick. These moraines are some of the best preserved examples to be found anywhere in North America.| HM Number | HM23PN |
|---|---|
| Tags | |
| Placed By | Oregon Highway Commission |
| Marker Condition | No reports yet |
| Date Added | Tuesday, December 12th, 2017 at 10:01am PST -08:00 |
| UTM (WGS84 Datum) | 11T E 482715 N 5020300 |
|---|---|
| Decimal Degrees | 45.33600000, -117.22060000 |
| Degrees and Decimal Minutes | N 45° 20.16', W 117° 13.236' |
| Degrees, Minutes and Seconds | 45° 20' 9.6" N, 117° 13' 14.16" W |
| Driving Directions | Google Maps |
| Area Code(s) | 541 |
| Which side of the road? | Marker is on the right when traveling North |
| Closest Postal Address | At or near 62345 Wallowa Lake Hwy, Joseph OR 97846, US |
| Alternative Maps | Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap |
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